pulse-operater chamber

例句：

1. 1. Thepulse-operated valve is used tocontrol the flow of fluids in asystem.
   脉冲操作阀用于控制系统中流体的流动。
2. 2. The pulse-operated switch isdesigned to respond quickly to changes in theenvironment.
   脉冲操作开关设计得能迅速响应环境的变化。
3. 3. The pulse-operated devicecan be used to measure the heart rateand blood pressure.
   脉冲操作设备可用于测量心率和血压。